I have a Pixel 8 Pro. I can see the "bumps" if I look at an extreme angle with the screen off. They're not visible with the screen on, and they're below the screen so there's nothing to feel. It does seem like a non issue unless something changes.
How do you consider it a non-issue if it's a defect in something you purchased from a major manufacturer? I hope you got an extra discount for this when you purchased it.
I'm not convinced it's a defect. For it to be a defect, it has to be unintentional and unwanted. There's nothing at this point to suggest it was unintentional, and it doesn't have any impact on my experience using it, therefore it's not unwanted. It's entirely benign.